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The 'A Team' singer also says the two get on so well because they have so much in common.

Ed Sheeran has revealed that his invitation to join Taylor Swift on her upcoming 'Red' North American tour happened via a simple text message exchange.

The 'Lego House' star, who will support 'Love Story' singer Taylor on all of her tour dates this year, says because of their close friendship it was easy to set up the support slot without any hassle or negotiation.

"There's no one really bigger in the world right now that I could tour with so to be able to get on that tour, and to be invited on, it's not like some of these tours where people have to pay money or it's a favour," Ed revealed to MTV News after the Grammys this week. "She just literally texted me saying, 'Do you want to come on tour?' and I was like, 'Yes'.

The 'A Team' singer went on to say that the two stars work so well together because they have such a lot in common, after they penned the song 'Everything Has Changed' for Taylor's album last summer.

"We're male and female, but we do exactly the same thing, like we're both the same age, we both write songs with guitars, we both tour playing acoustic music and that's kind of it," the UK star explained. "We've got a similar sense of humours.

"I guess we just have a lot in common," Ed added.

Check out a picture of Ed Sheeran performing with Elton John at the Grammy Awards 2013 below (Credit: PA):

This week both Taylor and Ed performed live at the Grammy Awards 2013 (10th February) with the US star opening the show and 'Small Bump' singer Ed performing a duet with Elton John.

Taylor Swift kicks off her 'Red' North American tour with a show on 13th March in Omaha, Nebraska.